void collect_relations_from_assembly(Assembly& assembly)
{
collect_relations_from(assembly.colors());
collect_relations_from(assembly.textures());
collect_relations_from(assembly.texture_instances());
collect_relations_from(assembly.shader_groups());
collect_relations_from(assembly.assembly_instances());
collect_relations_from(assembly.bsdfs());
collect_relations_from(assembly.bssrdfs());
collect_relations_from(assembly.edfs());
collect_relations_from(assembly.surface_shaders());
collect_relations_from(assembly.materials());
collect_relations_from(assembly.lights());
collect_relations_from(assembly.objects());
collect_relations_from(assembly.object_instances());
collect_relations_from(assembly.volumes());
for (auto& child_assembly : assembly.assemblies())
collect_relations_from_assembly(child_assembly);
// Lights are implicitly referenced by their parent assembly.
for (auto& light : assembly.lights())
{
const InputBinder::ReferencedEntity referenced_entity(assembly.lights(), &light);
insert_relation(referenced_entity, assembly);
}
// Object instances are implicitly referenced by their parent assembly.
for (auto& object_instance : assembly.object_instances())
{
const InputBinder::ReferencedEntity referenced_entity(assembly.object_instances(), &object_instance);
insert_relation(referenced_entity, assembly);
}
// Assembly instances are implicitly referenced by their parent assembly.
for (auto& assembly_instance : assembly.assembly_instances())
{
const InputBinder::ReferencedEntity referenced_entity(assembly.assembly_instances(), &assembly_instance);
insert_relation(referenced_entity, assembly);
}
}
void remove_unused_entities_from_assembly(Assembly& assembly)
{
remove_unused_entities_from(assembly.colors());
remove_unused_entities_from(assembly.textures());
remove_unused_entities_from(assembly.texture_instances());
remove_unused_entities_from(assembly.shader_groups());
remove_unused_entities_from(assembly.assembly_instances());
remove_unused_entities_from(assembly.bsdfs());
remove_unused_entities_from(assembly.bssrdfs());
remove_unused_entities_from(assembly.edfs());
remove_unused_entities_from(assembly.surface_shaders());
remove_unused_entities_from(assembly.materials());
remove_unused_entities_from(assembly.lights());
remove_unused_entities_from(assembly.objects());
remove_unused_entities_from(assembly.object_instances());
remove_unused_entities_from(assembly.volumes());
for (auto& child_assembly : assembly.assemblies())
remove_unused_entities_from_assembly(child_assembly);
}
void InputBinder::bind_assembly_entities_inputs(
const Scene& scene,
const SymbolTable& scene_symbols,
const Assembly& assembly)
{
// Build the symbol table of the assembly.
SymbolTable assembly_symbols;
build_assembly_symbol_table(assembly, assembly_symbols);
// Push the assembly and its symbol table to the stack.
AssemblyInfo info;
info.m_assembly = &assembly;
info.m_assembly_symbols = &assembly_symbols;
m_assembly_info.push_back(info);
// Bind textures to texture instances.
// Other entities might need to access the textures bound to texture instances,
// so binding of textures to texture instances must come first.
for (each<TextureInstanceContainer> i = assembly.texture_instances(); i; ++i)
{
i->unbind_texture();
for (AssemblyInfoIt j = m_assembly_info.rbegin(); j != m_assembly_info.rend(); ++j)
i->bind_texture(j->m_assembly->textures());
i->bind_texture(scene.textures());
i->check_texture();
}
// Bind BSDFs inputs.
for (each<BSDFContainer> i = assembly.bsdfs(); i; ++i)
{
bind_assembly_entity_inputs(
scene,
scene_symbols,
SymbolTable::symbol_name(SymbolTable::SymbolBSDF),
*i);
}
// Bind BSSRDFs inputs.
for (each<BSSRDFContainer> i = assembly.bssrdfs(); i; ++i)
{
bind_assembly_entity_inputs(
scene,
scene_symbols,
SymbolTable::symbol_name(SymbolTable::SymbolBSSRDF),
*i);
}
// Bind EDFs inputs.
for (each<EDFContainer> i = assembly.edfs(); i; ++i)
{
bind_assembly_entity_inputs(
scene,
scene_symbols,
SymbolTable::symbol_name(SymbolTable::SymbolEDF),
*i);
}
#ifdef APPLESEED_WITH_OSL
// Bind ShaderGroups inputs.
for (each<ShaderGroupContainer> i = assembly.shader_groups(); i; ++i)
{
bind_assembly_entity_inputs(
scene,
scene_symbols,
SymbolTable::symbol_name(SymbolTable::SymbolShaderGroup),
*i);
}
#endif
// Bind surface shaders inputs.
for (each<SurfaceShaderContainer> i = assembly.surface_shaders(); i; ++i)
{
bind_assembly_entity_inputs(
scene,
scene_symbols,
SymbolTable::symbol_name(SymbolTable::SymbolSurfaceShader),
*i);
}
// Bind materials inputs.
for (each<MaterialContainer> i = assembly.materials(); i; ++i)
{
bind_assembly_entity_inputs(
scene,
scene_symbols,
SymbolTable::symbol_name(SymbolTable::SymbolMaterial),
*i);
}
// Bind lights inputs.
for (each<LightContainer> i = assembly.lights(); i; ++i)
{
bind_assembly_entity_inputs(
scene,
scene_symbols,
SymbolTable::symbol_name(SymbolTable::SymbolLight),
*i);
}
// Bind objects inputs.
for (each<ObjectContainer> i = assembly.objects(); i; ++i)
{
bind_assembly_entity_inputs(
scene,
scene_symbols,
SymbolTable::symbol_name(SymbolTable::SymbolObject),
*i);
}
// Bind objects to object instances. This must be done before binding materials.
for (each<ObjectInstanceContainer> i = assembly.object_instances(); i; ++i)
{
i->unbind_object();
for (AssemblyInfoIt j = m_assembly_info.rbegin(); j != m_assembly_info.rend(); ++j)
i->bind_object(j->m_assembly->objects());
i->check_object();
}
// Bind materials to object instances.
for (each<ObjectInstanceContainer> i = assembly.object_instances(); i; ++i)
{
i->unbind_materials();
for (AssemblyInfoIt j = m_assembly_info.rbegin(); j != m_assembly_info.rend(); ++j)
i->bind_materials(j->m_assembly->materials());
i->check_materials();
}
// Bind assemblies to assembly instances.
for (each<AssemblyInstanceContainer> i = assembly.assembly_instances(); i; ++i)
{
i->unbind_assembly();
for (AssemblyInfoIt j = m_assembly_info.rbegin(); j != m_assembly_info.rend(); ++j)
i->bind_assembly(j->m_assembly->assemblies());
i->bind_assembly(scene.assemblies());
i->check_assembly();
}
// Recurse into child assemblies.
for (const_each<AssemblyContainer> i = assembly.assemblies(); i; ++i)
bind_assembly_entities_inputs(scene, scene_symbols, *i);
// Pop the information about this assembly from the stack.
m_assembly_info.pop_back();
}
void add_cube(
Assembly& assembly,
const size_t ix,
const size_t iy,
const double fx,
const double fz,
const Color3b& color,
const Transformd& transform) override
{
const string color_suffix = color_to_string(color);
const string color_name = "color_" + color_suffix;
const string material_name = "material_" + color_suffix;
if (assembly.colors().get_by_name(color_name.c_str()) == 0)
{
const Color3f reflectance = Color3f(color) * (1.0f / 255);
assembly.colors().insert(
ColorEntityFactory::create(
color_name.c_str(),
ParamArray()
.insert("color_space", "srgb"),
ColorValueArray(3, &reflectance[0])));
const string brdf_name = "brdf_" + color_suffix;
assembly.bsdfs().insert(
DisneyBRDFFactory().create(
brdf_name.c_str(),
ParamArray()
.insert("anisotropic", 0.0)
.insert("base_color", color_name)
.insert("clearcoat", 1.0)
.insert("clearcoat_gloss", 0.9)
.insert("metallic", 0.0)
.insert("roughness", 0.3)
.insert("sheen", 0.0)
.insert("sheen_tint", 0.0)
.insert("specular", 0.9)
.insert("specular_tint", 1.0)
.insert("subsurface", 1.0)));
assembly.materials().insert(
GenericMaterialFactory().create(
material_name.c_str(),
ParamArray()
.insert("surface_shader", "physical_surface_shader")
.insert("bsdf", brdf_name)));
}
// Create an assembly for this cube.
const string coordinates_suffix = coordinates_to_string(ix, iy);
const string cube_assembly_name = "assembly_" + coordinates_suffix;
auto_release_ptr<Assembly> cube_assembly(
AssemblyFactory().create(cube_assembly_name.c_str()));
// Instantiate the cube mesh object (from the parent assembly) into this assembly.
cube_assembly->object_instances().insert(
ObjectInstanceFactory::create(
"cube.0_inst",
ParamArray(),
"cube.0",
Transformd::identity(),
StringDictionary()
.insert("default", material_name)));
// Create an instance of the cube assembly.
const string cube_assembly_inst_name = cube_assembly_name + "_inst";
auto_release_ptr<AssemblyInstance> cube_assembly_inst(
AssemblyInstanceFactory::create(
cube_assembly_inst_name.c_str(),
ParamArray(),
cube_assembly_name.c_str()));
cube_assembly_inst->transform_sequence().set_transform(0.0, transform);
// Insert both the cube assembly and its instance into the parent assembly.
assembly.assemblies().insert(cube_assembly);
assembly.assembly_instances().insert(cube_assembly_inst);
}
